UI Suggestion: Check All Checkbox for Query

[SelinBaharGundogar]

I believe it would be a good UI practice if the "check all checkbox" is automatically selected when all query results are selected by checking their checkboxes. For instance, in this example, I checked the checkbox of index.md example, but the checkbox on top was not checked automatically.

[LaraMerdol]

This issue is actually related to the visual application, so we'll need to address it there @SelinBaharGundogar . The issue addressed invisuall#389